Is it possible we change uninstall confirmation with other form?

[FMHRepack]

I would like to make setup and uninstallform. i 've plan that uninstall confirmation is changed with my form. Is it possible?
http://fileforums.com/attachment.php?attachmentid=16711&stc=1&d=1482878937

[rinaldo]

I do not think you can do on InitializeUninstallProgressForm
but I may be wrong

CurUninstallStepChanged probably


Example UnFiles (internet source)